Yesterday I replaced the coolant temperature sending unit (the resistance was 10x higher than it should have been) and reverse flushed the radiator…nothing came out. Then, I went to drain the water back the “normal” way via the petcock on the radiator and scale came out. I kept flushing and got out about 2 tablespoons of scale that was large enough to block the small radiator lines. I flushed a few more times until nothing came through. Drove Charlotte yesterday to do some errands in town and she did perfect. I’m hopeful that I wont need a new radiator.
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